In short: One adult bearded dragon needs at least a 120 × 60 × 60 cm terrarium, and 150 × 80 × 80 cm is noticeably better. Give it a basking surface of 40–45 °C, a cool end of 22–28 °C, a strong T5 HO 12 % UVB tube and a rock background it can climb. Expect year-one costs of roughly 1,550–3,000 € including the animal.
What size terrarium does a bearded dragon need?
An adult central bearded dragon (Pogona vitticeps) reaches 45–55 cm including the tail. It is active, curious and spends much of the day patrolling, climbing and basking. The widely cited minimum for one adult is 120 × 60 × 60 cm (W × D × H).
That minimum is tight. With 150 × 80 × 80 cm or more you can build a proper temperature gradient, add a second basking level and still leave open floor. In Germany, guidance based on the 1997 BMEL minimum-requirements report (5 × 4 × 3 times the head-body length) also lands at around 125 × 100 × 75 cm for an average adult.
Bearded dragons are best kept alone. Two males fight, and a male will stress a female constantly. A solo dragon is not lonely – it is relaxed.
Can a baby start in a smaller tank?
A hatchling can live in a 90 cm terrarium for a few months, but it reaches adult size within about a year. Buying the adult enclosure straight away is cheaper overall – just add more cover so the youngster does not feel exposed.
Which temperatures and UVB does a bearded dragon need?
Bearded dragons come from the hot, bright interior of Australia. Heat and UVB are not extras; they drive digestion, immune function and calcium metabolism.
| Parameter | Target value |
|---|---|
| Basking surface | 40–45 °C |
| Warm zone air | 30–35 °C |
| Cool end | 22–28 °C |
| Night | 18–22 °C (no light) |
| Humidity | 30–40 % |
| UVB | T5 HO 12 % tube over half to two thirds of the length, UVI 3–6 at the basking spot |
| Light period | 12–14 hours in summer, about 10 in winter |
| Lifespan | 10–15 years |
Measure the basking surface with an infrared thermometer and the air with a digital thermometer that stores minimum and maximum values. Replace T5 tubes about every 12 months, because UVB output falls long before the light looks weaker.
How should a bearded dragon terrarium be laid out?
Here is the layout we recommend for a 150 × 80 × 80 cm terrarium, from left to right:
- Warm end (left third): a flat rock platform or background ledge 20–30 cm below the basking lamp, wide enough for the whole body. Under it, a hide that stays warm but not hot.
- Middle: open sand-soil floor for walking and digging, a root or branch as a ramp up to a second, lower basking level, and the feeding area.
- Cool end (right third): a roomy cave to sleep in, a shallow water dish and a few artificial plants for shade.
- Substrate: 8–12 cm of a sand-soil or sand-clay mix that holds a burrow. Avoid calcium sand, wood chips and walnut shell.
- Back wall: a 3D rock background that adds climbing surface and hides the cables.
Why a rock background matters for a bearded dragon
A bearded dragon loves to climb, and a flat glass wall gives it nothing. A rock background with ledges and terraces adds usable surface without taking floor space, and it stops the dragon from glass-surfing at its own reflection. Terrace designs from our rock and cave backgrounds work particularly well. The Golden Terrace background, for example, has broad steps that double as basking shelves.
| Terrarium (W × D × H) | Suits | Background size (W × H) |
|---|---|---|
| 90 × 45 × 45 cm | Hatchlings only | 87.5 × 42.5 cm |
| 100 × 50 × 50 cm | Juveniles | 97.5 × 47.5 cm |
| 120 × 60 × 60 cm | Minimum for one adult | 117.5 × 57.5 cm |
| 150 × 80 × 80 cm | Recommended for adults | 147.5 × 57.5 cm (leaves space for lamps above) or a custom size |
| 180 × 80 × 80 cm or larger | Large adults, best option | Custom size |
Before ordering, measure the inner back glass and compare it with the background size guide.
What does a bearded dragon cost in the first year?
These are approximate 2026 prices in EUR for a 150 × 80 × 80 cm setup. Electricity is calculated at about 0.35 € per kWh.
| Item | Typical price in 2026 |
|---|---|
| Bearded dragon (captive-bred) | 60–150 € |
| Terrarium 150 × 80 × 80 cm | 400–800 € |
| UVB T5 HO tube, fixture and reflector | 70–120 € |
| Basking lamps and dimmer or thermostat | 80–250 € |
| Thermometers, infrared gun, timer | 40–70 € |
| Background, rocks, hides, plants | 200–500 € |
| Substrate | 30–60 € |
| Food (insects, greens) and supplements | 400–650 € per year |
| Electricity | 200–300 € per year |
| Vet check-up | 60–100 € |
| Total year one | about 1,550–3,000 € |
From year two, running costs drop to roughly 700–1,100 € a year for food, power, a new UVB tube and a vet visit.
What does a bearded dragon eat?
Bearded dragons are omnivores whose diet shifts with age. Young dragons need lots of protein for growth: roughly two thirds insects and one third greens, offered once or twice a day. Adults reverse that ratio, with mainly greens and insects only two or three times a week.
Good greens include dandelion, rocket, endive, lamb's lettuce and plantain. Crickets, locusts, roaches and black soldier fly larvae are the best feeder insects – no larger than the space between the dragon's eyes. Dust insects with a calcium powder at most feedings and with a multivitamin about once a week.
Offer food at the warm end in the morning, after the dragon has warmed up, and remove leftover insects so they cannot nibble at a sleeping animal.
How are VivaDecor backgrounds made and installed?
Each background starts as a hand-sculpted model. It is cast in a lightweight, rigid material, painted in several layers and sealed, so the colours stay stable under hot basking lamps and strong UVB. The surface is non-toxic, does not crumble when claws scrape it and never rots or moulds.
To install, lay the empty terrarium on its back, apply neutral-cure silicone to the back glass and press the background in place. Let it cure for 24–48 hours with good ventilation before adding substrate. An optional service chamber hides thermostat probes and cables. To clean, brush with warm water – no chemicals needed.
Common mistakes in bearded dragon setups
- Compact UVB bulbs or no UVB: the result is metabolic bone disease. Use a linear T5 HO tube.
- Basking spot too cool: below about 38 °C digestion slows and the dragon becomes lethargic.
- Heat mat as the main heat source: bearded dragons warm from above, like under the sun.
- Too many insects for adults: adults need mostly greens; too much protein leads to obesity.
- Housing two dragons together: one is always the loser.
- Terrarium next to a window: glass blocks UVB but lets the sun overheat the enclosure.
FAQ
Is a 120 cm terrarium big enough for a bearded dragon?
It is the accepted minimum for one adult. A 150 cm terrarium makes it much easier to build a real gradient and is the better choice if you have the room.
How hot should the basking spot be?
The surface where the dragon lies should reach 40–45 °C, measured with an infrared thermometer.
Can bearded dragons live on sand?
Healthy adults do well on a sand-soil or sand-clay mix that is dug into a firm layer. Avoid loose calcium sand.
Is a bearded dragon or a leopard gecko easier?
The leopard gecko needs less space and power. Read our comparison leopard gecko vs bearded dragon for the details.
Ready to build a desert habitat your dragon can climb and bask in? Explore our bearded dragon enclosure decor for rock backgrounds, ledges and hides.